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TimeRanges.start

Returns the time offset at which a specified time range begins.

Syntax

startTime = TimeRanges.start(index) 

Parameters

  • index is the range number to return the starting time for.

Exceptions

INDEX_SIZE_ERR
A DOMException thrown if the specified index doesn't correspond to an existing range.

Example

Given a video element with the ID "myVideo":

var v = document.getElementById("myVideo");

var buf = v.buffered;

var numRanges = buf.length;

if (buf.length == 1) {
  // only one range
  if (buf.start(0) == 0 && buf.end(0) == v.duration) {
    // The one range starts at the beginning and ends at
    // the end of the video, so the whole thing is loaded
  }
}

This example looks at the time ranges and looks to see if the entire video has been loaded.

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'TimeRanges.start()' in that specification.
Living Standard Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support Yes Yes Yes Yes Yes Yes
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support Yes Yes Yes Yes Yes Yes Yes

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges/start